Hi Dominic,
The 200 OK returned by OpenSIPS should definitely contain a 120s expiry
time. Thanks for the detailed explanation - I will look into this asap.
Best regards,
Liviu Chircu
OpenSIPS Developer
http://www.opensips-solutions.com
On 20.09.2018 16:29, Dominic wrote:
Hi all, I have the following setup:
-sip device is registering to OpenSIPS setup as a mid_registrar who
then fowards registers to asterisk once they are authenticated
-OpenSIPS is setup in contact throttling mode with outgoing expires
set to 3600 sec.
The scenario I came accross is the following:
"Registration - OpenSips mid_registrar"
┌─┐
║"│
└┬┘
┌┼┐
│ ┌────────┐ ┌────────┐
┌┴┐ │OpenSips│ │Asterisk│
Alice └────────┘ └────────┘
│REGISTER (expires 3600 sec)│ │
│───────────────────────────> │
│ │ │
│ 401 Unauthorized │ │
│<─────────────────────────── │
│ │ │
│REGISTER (expires 3600 sec)│ │
│───────────────────────────> │
│ │ │
│ │ REGISTER (expires 3600 sec)│
│ │ ───────────────────────────>
│ │ │
│ │ 200 OK (expires 120 sec) │
│ │ <───────────────────────────
│ │ │
│ 200 OK (expires 3600 sec) │ │
│<─────────────────────────── │
│ │ │
│ │ │
│ │ │
│ │ │
Alice ┌────────┐ ┌────────┐
┌─┐ │OpenSips│ │Asterisk│
║"│ └────────┘ └────────┘
└┬┘
┌┼┐
│
┌┴┐
1-the sip device sends a REGISTER to OpenSIPS (expires 3600)
2-OpenSIPS authentifies the REGISTER and sends back challenge to the
sip device
3-sip devices sends authenticated REGISTER to OpenSIPS, here the
expires would normally be changed to 3600 but in this case it was
already set at 3600.
4-Asterisk receives the REGISTER, alters the expires to 120secs and
replies 200 ok to OpenSIPS
5-OpenSIPS forwards the 200 ok but with 3600 sec expires.
My Questions is:
I was expecting OpenSIPS to automatically update the expires in it's
usrloc to 120 seconds and send 120 sec in its 200 ok. Should I be
doing something in a return route for the REGISTERs in order to update
that and send the correct value or should opensips be doing that
automatically? Currently I am calling mid_registrar_save("location")
when I receive the REGISTER but doing nothing when I receive the 200 ok.
Thanks in advance
Dominic
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